24pcs Non-Metallic Minerals

Model Size:45*23*11cm This model is mainly used to teach the seabed terrain under the cover of deep sea water in geography teaching. It is difficult for students to observe and understand its shape and structure. Through the seabed model, the students realized that the edge of the continental land terrane was slowly slanting down the edge of the continental shelf in a plain plain called the continental shelf, and the seabed slanted down to form a continental slope. The continental shelf and the continental slope form a whole, closely adjacent to the edge of the continent, and are an extension of the continent. The bottom of the continental slope is the real boundary between the mainland and the ocean. At this boundary, the crust has huge cracks due to different geological structures, and a series of trenches appear. The ocean floor is the main body of the ocean, where the long seabed is distributed. The mountains are also called ridges. There is a high ridge in the oceans, which are twisted and twisted, but connected to each other and through the four oceans, collectively known as the mid-ocean ridge. On both sides of each mid-ocean ridge there is a vast closed or semi-enclosed area of ​​the vast basin. There are also individual or stripped volcanic islands (chains) in the ocean.

Model Size: 45*19.5*25cm Set of 2 This product is suitable for use in teaching geological structures during geography teaching in secondary schools. The model visually shows that the rock layer is bent by the force to form a fold, or the fault is formed by the uneven force. The formation of wrinkles and faults changed the surface morphology. The model can also enhance students' perceptual knowledge, solve the strong ablation effect of the free external force that students can hardly grasp, make the anticline become a valley, or incline into a mountain, and can determine the anticline and the oblique from the old and new relationship of the rock formation in the model.

Rock Size:3*4cm Two Boxes Wooden Box Size:400*230*35mm Limonite/ Lead-zinc Ore/ Bauxite/ Navajoite/ Titanic Iron Ore/ Delafossite/ Cassiterite/ Magnetite/ Hematite/ Graphite/ Quartz/ Wollastonite/ Diopside/ Montmorillonite/ Talc/ Serpentine/ Kaolinite/ Zeolite/ Plagioclase/ Calcite/ Dolomite/ Barite/ Gypsum/ Apatite/ Granite/ Basalt/Andesite/ Diabase/ Synite/ Limestone/ Sandstone/ Shale/ Conglomerate/ Breccia Marble/ Quartzite/ Leptite Schist/ Gneiss